Jimi Jamison, singer with rock bands Survivor and Cobra, has passed away at the age of 63.

Jamison, who was perhaps best known for co-writing and singing on 'I'm Always Here', the theme for the hugely successful drama series Baywatch 'I'm Always Here', passed away at his home in Memphis, Tennessee on Sunday (August 31st) as a result of a heart attack, US gossip website TMZ reports.

The singer joined Survivor in 1984, two years after they released their breakthrough single 'Eye Of The Tiger, and remained with the brand until 1989, contributing to three studio albums and recording a number of hit singles, including 'Burning Heart', which featured on the soundtrack for Rocky IV.

Survivor have paid tribute to Jamison, writing in a statement: "The entire Survivor family is very shocked and saddened by the passing of our brother Jimi Jamison. Our thoughts, love and prayers go out to his family and friends."

Jamison, who also provided backing vocals for a number of huge artists like ZZ Top and Joe Walsh, also enjoyed a successful solo career after his departure from Survivor in 1989.